[DeTomaso] second update on clutch slave not compressing fully

[Pantdino]

Yes, the part of the slave rod covered by the boot rotates, so I shortened the rod enough to get the appropriate play. Clutch arm now moves easily-- not binding or stiff.  But actuating the clutch again produces the same situation--  play gone, clutch arm being held rearward by slave rod.  Tapping clutch arm forward w mallet moves it to recreate play, but it disappears again at the next clutch actuation.  

So it is definitely the clutch hydraulic system that is not returning to rest position.

I have never heard of a clutch master failing in such a way that the piston fails to return to rest position and instead keeps pressure in the system. Has anyone else?

A clutch slave is just a simple piston in a bore with one fluid connection, and I don't see how it could fail in this way.  Also, the fact that the situation occurs with the rod shortened means the slave piston is now in a different spot and is still not moving, so unlikely to be a binding piston.

Jim

-----Original Message-----
From: Pantdino <pantdino at aol.com>
To: detomaso <detomaso at realbig.com>
Sent: Sat, May 12, 2012 2:14 pm
Subject: [DeTomaso] update on clutch slave not compressing fully



 drove the car from my other garage to home. The car had been sitting for a 
onth there, and the stop bolt WAS touching the bracket. But upon pressing the 
lutch there was no free play.

fter the short drive home the car sat for an hour or so and I noted the bolt 
as no longer touching the bracket. I used a piece of rope to remove the spring 
stiff spring which takes 2 hands for me) and now even though the bolt was not 
ouching the bracket there was free play-- I could easily move the clutch lever 
bout 2-3 mm with my hand, as it was when I adjusted it before.

ut after actuating the clutch a few times the bolt is further from the bracket 
han it was before the drive home and the clutch arm is like rock-- absolutely 
tiff, can't move it with my hands at all.

y life is complicated by the fact that the clevis pin has been seized in the 
ores of the clutch arm since I got the car in 1989. So I can't remove it to see 
ow the pin aligns with the bores. But right now the clutch arm is still under 
ension from the hydraulics, so it would obviously not line up.
I
 has been too long now since I installed the new clutch slave, so I can't 
emember what the actuating rod looks like under the rubber boot and I can't 
ompress my boot far enough to see. I'm thinking the rod has a female thread, 
nto which the end with the hole screws. I that correct? So I need to rotate the 
ortion of the rod hidden by the boot to decrease its length, correct?  Can I 
ush the boot off the far end and turn the exposed metal with vise grips to do 
his?

hanks, 
Jim

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